Xalatan Posted December 31, 2014 Share Posted December 31, 2014 When other brainstem cranial nerves don't? Link to comment Share on other sites More sharing options...
imatfaal Posted December 31, 2014 Share Posted December 31, 2014 To allow examiners to set more interesting questions about ipsilateral and contralateral indications of lesions? Not sure there really is a why 1 Link to comment Share on other sites More sharing options...
Function Posted January 1, 2016 Share Posted January 1, 2016 No idea why it does specifically exit the brain stem dorsally, but a small correction (very small): your title gives the impression that it decussates after leaving the brain stem. Note that its fibres already decussate in the brain stem Link to comment Share on other sites More sharing options...
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